Display device



Nov. 23, 1943. e. T. CHAPMAN DISPLAY DEVICE 2 Sheets-Sheet 1 Filed Jan. 18, 1940 e I I v mvsm'ozz BY Jv/ rZfZe/mm gm, W, 474if vg g TTORNEYj' Nov. 23, 1943.

G. 1', CHAPMAN DISPLAY DEVICE Filed Jail. 18, 1940 2 Sheets-Sheet 2 INVENTOR. Z0! 6 .Z'Jyara Patented Nov. 23; 1943 V DISPLAY DEVICE' y y cfetr e T. Chapman, betroit, Mich. I Application January; 1940, Serial No. 314,439 i (01. 40-1 04) V 13' Claims.

This invention relates to 'a display devicefor automatically turning the leaves or pages of newspapers, magazinesand the like. 7

An importantpbject'of the invention is to provide a device'which will, at predetermined intervals, singly turn the leaves'of a magazine or the like in a direction counterclockwise to the reader and when every sheet. has been so turned, will, in one motion; return the magazine or the like to its initial position with the coverdisplayed.

'A further object of the invention is to provide a leaf turning mechanism which will automatically return the magazine to initial position after the last sheet has'been turned regardless of the number of pages in the magazine. No adjustment is required to accomplish this; I

A further objectof the invention isrto provide a leaf turning mechanism which will turn the pages of a magazine while retaining them substantially in plane. i

-A further object of the invention isto provide a leaf turning mechanism which will not alter or mar any portion of the pages upon which it operates. y j p Other objects and advanta es-will be apparent from the following description.

In the drawings: ;1 Fig. 1 is aperspectiv'e view of the device; Fig. 2 is a-section along the lines 2 2 of Fig. 3.

His a vertical section fromfront to back of the cabinet and with themagazin'e' rotated to a horizontal position; r

Fig. 3 is a section along the: lines 3-3 of Fig. 2

InFig. 1 the complete device may be seen in perspective. A magazine i9 is in position upon a cabinet ll. It is the aim of the invention to provide a device which will display each page of the magazine ora like article. An arm 55 and a suction cup il actuate d by means tobe described herein, singly turn the pages of;the magazine. Means will also be described herein to return the magazine Hi to initial position with its cover displayedafterall the pages. have been turned. 7 .j r 1.

Looking at the detailconstruction of the device, bent pins I2 and thumbnuts .13 hold the magazine in place by'engaging it along its line of binding. The axis it about which the arm l rotates, is to the left ofthe center of the magazine. This causes thesuction cup to slide toward I the'e'dgeof the page when'the arm-is rotated thus causing the page to be taut or in'lplane dur-* ing its' rotation. The suction cup will finallyslide off the edge o f-thepageandreleasesaid page. the preferred construction thisf'occurs when the page has been rotated 130 degrees'.

The details of the mechanism can best beobserved in Fi s. 2 andf3. V In Fig. 2; stricter; H, mounted on a frame l8, rotates an iepcentri'c 19 which reciprccates' a piston 2!] ma cylin drjzl. The cylinder is pivotally mounted by a1pin'31 on frame 58 to allow for the eccentric movement of pistonZii. Cylin'derfZi islprovi c led with an in .take'valve 22 and an exhaust valve 23. ionduit 2c leads to the intake valve. 1 t; its other end conduit 24 is fastened'to a tube 25 leading to a hub 260i hollow arm l5 on which suction cup M is'located at the free end. The piston?!) and valves 22' and 23 are arrangedto create a sub tion' in suction cup [A andthuscause the magazine page to adhere to cup Hi.

A motor sha'ft21 of lnotor l-l, through a 'key 28, drives a stud 29 on whichis fastened block 39. Bolted to block 30 are arms3 l which are adapted to engageandrotate aflcam wheel 32. Rigidly fastened to cam 32' is a gear-Q34 which meshes with a gear f35"whic1ihas the same axis as'arm -l5 and is fastened thereto." Therefore,

contact of armsSI- rrcam 32frotatesthe clatter through an arc whichjth'rough gears 34 and 35, rotates arm i5 and sodtmneu fM; ""As soon as an arm 3'! has left cam 32 ,"a torsion spring 35,

faste'ned'tothe axis of arm l5,-" and to the frame IQ of cabinet I lyreturns camfil arm [Sand suction cup is toftheiroriginal positions. In" the preferred designthe motor'isdsigned such that arm {I 5 is actuated l'oy'c'gsli'i n 3 2' about-every thirty seconds. This procedure automaticallycontinues turning each "individual page at intervals until every'page, including'the back cover'ha's been turned.

Means are'provided so that when the back cover has been turned the magazine or book will be automatically turnd b'ack to initial position with thefront cover displayed so that the page turner may repeat (see Fig. '3). '(i. e. back cover) of the magazine-has; been turned, the suction cup is returned as usual by r torsion spring 36. This brings suction cup It directly in contact' with the cabinet H; The.sur faceyofcabinet H is provided with aihole 38 directly beneaththe point of contact ofthe V suction .cup. .Connectedto hole 38 is a. conduit 39 leading toacylindernlfl containing pistonrdl. A piston rod 42 on piston! lprojects'down'wardly out of cylinder 40. 'C'on'tact of the suction cup When the last page moves upward. An arm 43 is pivoted at 44 and at its free end rests on a lug 45 of piston rod 42. A tooth 46 on arm 43 is adapted to engage a ratchet wheel 41 mounted on a shaft 48. A sprocket 49 is keyed to shaft 48 and driven by a chain 5!] from a sprocket 5|. Sprocket 5| is keyed to a shaft 52. The housing of motor l1 contains gears (not shown) which drive shaft 52 from the motor shaft 21. 52 project from the front of the housing. In the preferred constructionshaft 52 makes four revolutions to one revolution of shaft 21. The numeral 53 designates an idler sprocket which also,

A connecting rod 54, pivotally connected to arm 43 at 44 and to a link 55 by engages chain 50.

a pivot 56, is slidably mounted in guide pins 51. Link 55 is pivotally connected to is keyed to a shaft 59.

When piston 4| moves upward, as previously explained, it lifts arm 43 by means "of" 1ug' 45 Arm 64 when not in operation is preferably flush with the upper. surface of the cabinet. Motion of shaft 63 through sprocket 52 and chain 69 actuates arm 64 Inthepreferred embodiment a crank 5 which r :gspaced relative to the length of said arm that The two shafts 21 and arm 64Yis rotated 90 degrees by shaft 63. In

Fig. 3, arm 64 is shown in dotted-lines inoperative position; A spring 65,-mounted on crank 58. and on frame If! by a lug 66 returns the arm {54 to its rest position after it has rotated 90 degrees and tooth 415 on arm 43 has slipped out of engagement with ratchet wheel 41. a

- It should be noted that when arm 64 is actuated to close the magazine, the arm I5 is in the po i n shown nF s. 3 w th c i n p M on h n ati here s hus no o po unity for. the arms to interfere witheach other. The

pa e f he ma azine retu ed r 6.! o

how ve a l in ta n u n a or of arm I5. Hole 38 ispreferably located near the edgev of the magazine. The-torque transmitted to arm I 5 from-motor I1, is suflicientto overcome the weight of the returned pages and flexthem to permit arm 15 to pivot. The device is, therefore, particularly adapted to beused with magazines Q t ke nrq ided t fle e a s a d a flexible rear cover. I rm 5 and su ion mm M. n w epeat the previously explained turning of the pages;

It is to be understood thatthe particular structure described is but a preferred embodiment of my invention. I

WhatI claim is:

1; In a leaf turning mechanism, a support for a plurality of leavesya movable' arm associated with said support for turning individual leaves in one direction,"means for moving'said "arm at predetermined:intervals, said armhaving a 'hole' formed at a free end thereof, means creating a suction at 'saidhole wherebya leaf maybe held to said arm, repositioningmeans for shifting a p al y f leaves ba k to a s a tin si on, a a in mean o s i renq t m s m a s. and mean or ni ia n the move ent of. a a tuatin me ns c mpri n @I'QY I dQ Z,%$Q9iT ated with said support and located to register with said hole in said arm, and pressure responsive means operably connected with said actuating means within said cylinder arranged to be actuated by suction from the hole in said arm when all of said leaves have been individually shifted.

, 2. In a mechanism for turning a plurality of leaves from an initial position to a turned position, a support for a plurality of leaves, means on said support to clamp the edges of'said leaves whereby an axis of rotation of said leaves is formed, a movable arm associated with said support pivoted on an axis substantially parallel with said leaf axis but spaced therefrom, holding means on a free end of said arm for slidably retaining an individual leaf, said axes being so said holding means will be freed from a leaf when said leaf has moved through a predetermined angle beyond a vertical position.

'3. In a leaf turning mechanism, a support for a plurality of leaves, a movable arm associated with said support "for turning individual leaves i i-one direction, means form'ovin'g said arm at predetermined'intervals,'said arm having'a hole formed at'a free end thereof, means creating a suction fat said'hole'whereby a'leaf may be held said arm; repositioning means for shifting a plurality. of leaves backto a starting position, actuating means roman repositioning means gomprising a 'nio'tonfa rotating shaft on said moiei an anese W ee r er i f r a ai motor shaft, a dog adapted to engage saidratchet wheeLa loii'gitudinalshifting bar adapted to be shifted by'co ntact of said dog in said rat het.

crank means adapted to transfer longitudinal shifting means ofsaid bar to said repositioning means, and means to cause engagement of said dog with said ratchet comprising a piston and a cylinder exposed to suction of the free end of the rotatable arm when all leaves have been turned. 4 In a mechanism for turning a plurality of leaves from an initial position to a turned position, a movably mounted member; :a suction cup thereon, means to actuate saidmemb er to effect individual, turning of saidleaves by reason of contactof suction cup there witn and suction responsive means actuated by contact of said suctioncup when all leaves have been turned from initial position, to'shift allturned leaves to initial position. J H 4 5 ."In a mechanism for turning a pluralityof leaves from anjlinitial position toa turnedp osit on, a movable member, a suction cup thereon, means to actuate said member to effect'indi vidual" turning'of said leaves, an openconduit means to actuate saidemember to, turn. said leaves individually, means tomaintain a suction in said cup, a cylinder, a piston within the, cylinder, a

,duit nne e to. a d; y i r and prov di d w th gape? a ada te & be qes ale be:

neath'leav esl in the initial position and adapted contact of said suction cup therewith, a second 7 means to create a suction in said cup, and a third means to simultaneously return all turned pages to initial position when all pages have been turned, said third means comprising a rotatable member positioned below all of said turned pages and means to actuate said rotat able member.

8. In a mechanism for turning a plurality of pages from an initial position to a turned posi tion, a movable member, a suction cup thereon, means to actuate said member to effect individual turning of said pages by reason of contact of said suction cup therewith, means to create a suction in said cup, a conduit concealed beneath pages in the initial position, and suction responsive means actuated by contact of said suction cup with the open end of said conduit, whenlall' pages have been turned from initial position, to shift all turned pages to initial position.

9. In a mechanism for turning a plurality of pages from an initial position to a turned position, a movable member, a suctioncup thereon adapted to adhere to an individual page to be turned, a first means to create a suction in said cup, a second means to move said member at predetermined intervals and thereby turn an individual page, and a third means adapted to simultaneously return all pages to the initial position after the last page has been turned, said third means comprising a second member adapted to lift all turned pages as a unit.

10. In a mechanism for turning a plurality of leaves from an initial position to a turned position, a movably mounted arm, asuction cup 45 thereonQmeans to actuate said arm to effect individual turning of said leaves by reason of contact ,of said suction cup therewith,said means comprising a motor, a rotating shaft on said 5 motor, arms extending from said shaft, a cam wheel adapted to be rotated by contact of said arms and means for transmitting rotation of said camto said movably mounted arm.

11. ,In a mechanism for turning a plurality of leaves froman initial position to a turned position, a movably mounted member, means on said 1 member adapted to adhere to individual leaves, means to actuate said member to effect indi-- vidual turning of said leaves and means actuated when all leaves have been turned from initial position to shift in a unit all turned leaves to initial position.

12. In a mechanism for turning a plurality of leaves from an initial position to a turned posi 2 0 tion, a movably mounted member, asuction cup having a length whereby it will contact the leaves in one extreme position and clear them in the other extreme position thereby causing said suction cup to slip from the outer edge of the leaf being turned at a predetermined point in its movement beyonda vertical position.

13. In a mechanism for turning a plurality. of leaves from an initial position to a turned posi tion, a movably mounted member, means thereon adapted to adhere to individual leaves, means to actuate said memberto effect individual turning of said leaves by reason of contact of said a'dhering means therewith, means mounting said member onan axis parallel with but to one side 40 of the axis of the leaves thereby giving a movement adapted to release the adhering means from the leaf being turned at a predetermined point in its movement after the leaf has been 

